Electrical heating devices



June 25, 1963 G. P. DEAcoN ELECTRICAL HEATING DEVICES Filed Nov. 9. 1961 y mm M Nc e mm. m m0 r 3,095,491 ELECTRICAL HEATING DEVICES George I. Deacon, 169 Edgewood St., Wheeling, W. Va. Filed Nov. 9, 1961, Ser. No. 151,275 4 Claims. (Cl. 219-19) The present invention relates to electrical heating devices and is more particularly directed to an electrical radiant heating panel.

The principal object of the invention is to provide a combination radiant heating panel and Wall board for use in forming with similar wall boards a ceiling tor various sized rooms, and which panel will direct heating rays downwardly from the ceiling into the area therebeneath for heating said area as desired.

v A further 4and important object of the invention is to` provide an electrical radiant heating panel which can be readily and economically produced and which further can be quickly and easily mounted upon building framework or existing ceilings to provide a ceiling for rooms to be heated by the panel.

A still further and equally important object of the invention is to provide ll-at heating panels ot various sizes which can be atlixed to ceiling -beams or joists to form a sheathing therefor and also provide heat for the room formed thereby :and which panels completely Ihouse and electrically insulate the electrical heating wires therein with only non-heating leads extending from the panel for connectio-n to a source of electrical current.

Further objects of the invention will be in part obvious and in pant pointed out in the following description of the accompanying drawings in which:

FIG. 1 is a bottom perspective view of a radiant heating panel according to the present invention mounted upon ceiling beams.

FIG. 2 is a further perspective view `of the panel on a side opposite to FG. l and having a covering sheet partly withdrawn.

FIG. 3 is an enlarged cross-sectional view of a portion of the panel showing the connection of the heating wires to the non-heating leads.

FIG. 4 is a greatly enlarged view of a corner portion of the panel with the filling and cover sheet removed to show the mounting of `the heating wires.

FlG. 5 .is an enlarged cross-sectional view of a side portion of the panel.

And FIG. 6 is a greatly enlarged cross-sectional View of one of the connections of a heating wire to a nonheating lead.

Referring now more particularly to the accompanying drawings in which like `and corresponding parts are designated by similar reference characters, numeral 1 generally indicates a sheet of gypsum plasterboard which is shown of a generally elongated, rectangular configuration, bu-t may have various shapes or rbe of Various sizes as desired by the user. One face of said panel board, which is to provide the upper face when the board is mounted, has a serpentine continuous recess 2 provided therein. As best shown in FIG. 2, sa-id recess has Ia Series of spaced-apart straight portions 5 which extend parallel with the edges of the panel -board and which are positioned within and spaced from further straight portions 4 of said recess which portions 4 are parallel but spaced from lthe edges of said panel board leaving a solid marginal portion therebetween.

Portions 5 lof said recess are connected at their `opposite ends by lateral portions 6 land 7 of vsaid recess which extend parallel to but are spaced from the ends tot said Y ice an end of said panel board leaving a marginal solid portion therebetween.

The corners of `said recess connecting the longitudinal portions 4 and 5 with the lateral portions 6 and 7 are cut away as at 3 -as shown in FIG. 4 to provide an enlarged space for ia purpose to be hereinafter explained.

An electrical heating wire 8 which may be of a nichrome resistance wire having a resistance sutlicient to produce 2.55 watts per foot `ot wire extends completely throughout recess 2 and its portions 4, 5, 6, `and 7. The amount of wattage to be provided by said wire for the entire board 1 can be determined by the amount of Wire placed in said recess 2 and thus the size of the recess.

As best shown in FIG. 3, connectors 9 connect the opposite ends of wire 8 to non-heating leads 11 and 12, and said connectors :are crimped by bands 10. Tha-t is, the opposite ends of wire 8 are positioned adjacent one another in recess 2, and each end extends within one connector 91as do the ends 11 and 12 of the lead 13 whereby the heating wire is connected to the non-heating lead Within recess 2.

A filling of :an electrical heating material such as plaster 14 is placed within recess 2 including those portions 4, 5, 6 and 7 above the heating wire 8, connectors 9, and leads 11 and 12 with the plaster being flush with the top face of board 1 `and upon the drying of said plaster, .the same hardens and retains `the wires within the recesses. However, the space provided by cut-away 3 allows the wire 8 to expand and contract within the recess during the heating and cooling thereof without pulling the same loose from the connectors.

A material tape 15 having an opening 16 is fixed by an adhesive on plasterboard 1 and plaster 14 above the leads 11 and 12, and said lead cover 13 extends through opening 16.

A sheet 18 oi paper or aluminum foil extends completely across the upper face of panel hoard 1 including the plaster 14 and tape 15 and is axed thereto by an adhesive or the like. Said sheet material has -an opening 19 in linewith the opening 16 in tape 15 through which lead 13 extends.

In the use of the present panel board, the same is afxed in any conventional manner to the lower face of the beams or joists by driving nails or like fasteners through the panel board into each of the beams or joists A. To enable the person assembling the panel to the beam, the lower face 20 of the panel board has indicia marked thereon. That is, nail lines 24, which extend parallel with the portions 4 and 5 of recess 2 but therebetween, are indicated by dash lines including the wording nail line. Further indicia normal to said nail lines is provided by parallel pairs of dash lines 21, 22 and 23 which extend in line with the lateral portions of said recess 2 including 6 and 7 and include the wording Do Not Nail therebetween. i

Additional similar panels 1 vare similarly fastened to the beams A with the panels abutting to form the cornplete ceiling, and the non-heating leads 11 and 12 have their inner coa-ting 26 removed leaving the bare wires 27 Which can be connected to any conventional source of electrical current when and if desired to place current through to the heating wire 8 for causing the same -to radiate heat through the bottom face 20 ot said panel board to the room therebeneath.

iIn FIG. 6, there is shown one example of connector 9 which is a plastic, electrically insulating tube inside of which is placed a copper tube 28 into which extends in an overlapping position bare wire 25 from the heating wire 8 and the bare wire 27 from the non-heating leads 11 or 12. The ends of tube 28 are crimped forcing said bare wires together. Also, metallic bands 10 encircle connector 9 at the end portions thereof and are crimped thereto.

The present invention is capable of considerable modiiication, and such change thereto as come within the scope of the appended claims are deemed to be a part of the .present invention.

I claim:

1. An electrical radiant heating panel comprising an electrical insulating and thermal conducting sheet of plasterboard having a serpentine recess provided in and extending along one face thereof, an electrical resist-ance heating Wire positioned in and extending lengthwise of said sheet recess, non-heating lead wires for connection to a source of electrical Icurrent having a portion Within said sheet recess each connected to Ian opposite end of said heating wire and extending from said sheet recess, an electrical insulating material lling said recess only above said heating wires and the portions of said nonheating wires in said sheet recess retaining said wires in said recess, a tape tixedly mounted on said sheet face only above said non-'heating wires in said recess and having an opening with said non-heating wires extending therethrough, and a paper sheet fixedly mounted on said plasterboard sheet face completely covering said plasterhoard face, said lling and said tape and having an opening with said non-heating wires extending therethrough.

2. An electrical radiaant heating .panel comprising a rectangular electrical insulating and thermal conducting sheet of plasterboard, said sheet having a continuous recess in a face thereof with parallel straight spaced apart portion extends lengthwise of said sheet parallel to, 'but spaced from, -the side edges thereof with said lengthwise portions joined at their opposite ends by end portions of 1said recess extending parallel to, but spaced from, the end edges of said plasterboard sheet, an electrical heating wire extending lengthwise of said sheet recess with the opposite ends of said wire terminating adjacent one another in said recess, non-heating electrical conducting wires extending from said sheet recess, means connecting each end of said heating Wire to an end of said nonheating wire in said recess, an electrical insulating material lling said recess only above said wires level to said sheet face retaining said wires in said recess, and a paper sheet covering said plasterboard sheet face and said llinrg and having lan opening with said non-heating wire extending therethrough.

3. An electrical radiant heating panel as claimed in claim 2 wherein said plasterboard sheet recess has the corners at which the lengthwise portions thereof connect with the end portions enlarged and said non-heating wire portions in said enlarged corners are positioned to move under the expansion and contraction of said wire due to the heating and cooling thereof.

4. An electrical radiant heating panel as claimed in claim 2 wherein indicia is provided on the opposite face of said p-lasterboard sheet to indicate areas in which nails can be safely d-riven through said sheet for `connection to supporting members, said indicia indicating nailing lines extend-ing lengthwise of said plasterboard sheet between and parallel to said lengthwise portions of said sheet recess and further indicia on said sheet opposite face extend-ing in line with said recess end portions indicating areas in which nails are not to =be driven.

References Cited in the file of this patent UNITED STATES PATENTS 2,138,217 Sutter Nov. 29, 1938 2,540,465 Tice Feb. 6, 1951 2,544,547 Vogel Mar. 6, 1951 2,613,306 Waltersdorf et al Oct. 7, 1952 2,889,439 Musgrave ,June 2, 1959 2,932,711 Adams Apr. 12, 1960 2,979,595 Deacon Apr. 11, 1961 FOREIGN PATENTS 374,593 Great Britain June 16, 1932 752,005 Great Britain July 4, 1956 

2. AN ELECTRICAL RADIAANT HEATING PANEL COMPRISING A RECTANGULAR ELECTRICAL INSULATING AND THERMAL CONDUCTING SHEET OF PLASTERBOARD, SAID SHEET HAVING A CONTINUOUS RECESS IN A FACE THEREOF WITH PARALLEL STRAIGHT SPACED APART PORTION EXTENDS LENGTHWISE OF SAID SHEET PARALLEL TO, BUT SPACED FROM, THE SIDE EDGES THEREOF WITH SAID LENGTHWISE PORTIONS JOINED AT THEIR OPPOSITE ENDS BY END PORTIONS OF SAID RECESS EXTENDING PARALLEL TO, BUT SPACED FROM, THE END EDGES OF SAID PLASTERBOARD SHEET, AN ELECTRICAL HEATING WIRE EXTENDING LENGTHWISE OF SAID SHEET RECESS WITH THE OPPOSITE ENDS OF SAID WIRE TERMINATING ADJACENT ONE ANOTHER IN SAID RECESS, NON-HEATING ELECTRICAL CONDUCTING WIRES EXTENDING FROM SAID SHEET RECESS, MEANS CONNECTING EACH END OF SAID HEATING WIRE TO AN END OF SAID NONHEATING WIRE IN SAID RECESS, AN ELECTRICAL INSULATING MATERIAL FILLING SAID RECESS ONLY ABOVE SAID WIRES LEVEL TO SAID SHEET FACE RETAINING SAID WIRES IN SAID RECESS, AND A PAPER SHEET COVERING SAID PLASTERBOARD SHEET FACE AND SAID FILLING AND HAVING AN OPENING WITH SAID NON-HEATING WIRE EXTENDING THERETHROUGH. 